Improvement in locomotives for single railways



H. S. PRUYN.

' 7 2 Sheets-Sheet 1. Locomotive for Single Railways.

Patented April 22, 1879.

GJI'NVENIQ'OR i 07 fiilvgjmssss ATTORNEY N. PETERS, PHoTO-uiHOGRAPHER,WASHINGTON. D C.

2' Sheets-Sheet 2. H. S. PRUYN. Looomotive for SingloRoilways.

Patented; April 22, 1879.

z If v UNITED STATES PATENT "OFFICE.

HENRY S. PRUYN, OF CENTRE WHITE CREEK, NEIV YORK.

IMPROVEMENT IN LOCOMOTIVES FOR SINGLE RAILWAYS.

Specification forming part of Letters Patent No. 214,701, dated April22, 1879; application filed February 11, 1879.

To all whom it may concern:

ington and State of New York, have invented a new and valuableImprovement in Combined Locomotive and Tender; and I do hereby declarethat the following is a full, clear, and exact description of theconstruction and operation of the same, reference being had to theannexed drawings, making a part of this specification, and to theletters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of alongitudinal section ofmy invention. Fig. 2 is a transverse section of the same. Fig. 3 is alongitudinal section of the tender, and Figs. 4 and 5 are sectionalviews of the drivin g-wheels.

This invention has relation to improvements in combined locomotives andtenders, operating on the sin gle-rail elevated system; and the natureof the invention consists in the construction and novel arrangement ofparts, as hereinafter shown and described.

In the annexed drawings, the letter A designates the upper or hearingrail, supported by spaced uprights B, erected on a suitable base andbraced against sagging. At a suitable distance below rail A is a secondrail, 1), arranged parallel to rail A and in a horizontal position, andhaving at each edge a tread, 0,

y in a plane at right angles to the tread c of the upper or bearingrail. D indicates the cab or housing of the driving machinery, and D asimilar structure, preferably without a roof, and constituting I thetender. The part 1) is divided by a horizontal partition, a, into twodivisions, b and b the upper one being a receptacle for coal or otherfuel, and the lower one the water-tank.

The cab extends down on one side of the track, and the tender on theother, until their bottoms are nearly on a level with the rail 1), andare rigidly connected together (so as to be incapable of separation)above the rail A by a bridge, truss, or other suitable device ordevices. The whole is supported by the driving and transporting wheelsE, arranged between the cab and ten der and journaled therein, pedestalsor other similar devices being provided for the purpose. These wheelsare each driven the track, and preventing coal from dropping on thesame. The cab and tender are provided on their under sides with groovedanti-friction wheels G, that bear against opposite sides of the lowerrail, b, and prevent the cab and tender from swaying from side to side,the said wheels being journaled in their respective positions nearlyhorizontally.

The driving-wheels E are made in two sections, h h, the former having ahub, j, upon which is passed, first, an annular gear-wheel, j, and thenthe section b, the latter being usually shrunk on. The gear j isprovided with a number of curved slots, 8, concentric with itsperimeter, through which extend the bolts 2', passing through bothsections of the wheel, and secured in position in any suitable way. Thewheels are double-flan ged, as shown at Z, and bear upon both sides ofthe upper rail, A, holding the gear-wheel clear of the track when theengine is on a level, but causing it to engage with a rack upon thetrack when the engine is ascending a grade. At the moment of engagingsaid rack, should the teeth of the gear strike upon those of the rack,the former rotates upon the hub of the wheel without engaging thelatteruntil the teeth of the said gear are in position to enter theinterspaces of the teeth of said rack, when engagement takes place andthe engine commences to ascend. By this means the teeth of the rack andgear are prevented from breaking off, owing to the former riding thelatter.

The lateral guards r prevent fine coal from dropping on the wheels,finding its way between its sections and gear-wheel, getting into thecurved slots 8 and locking the said gear against rotation under theafore-d-escribed circumstances. The bridge guard operates in like mannerby preventing the teeth of the gear from filling with coal-dust.

It is evident that the gear may be secured, as above set forth, toeither side of a drivingwheel, to engage a rack at the correspondingside of the bearing-rail, and be equally elfective. The boiler N isinside of the cab, and is mounted by means of trunnions 7c inpillowblocks 1, so as to vibrate and preserve a normal verticalposition. The stack m extends through a slot, 8, in the roof of the cab,and carries a shield, n, that covers the said slot, and that, movingwith the stack, excludes rain and snow from the inside of the cab.

It will be observed that the weight of the cab, the engine, and boilercounterbalances that of the tender and its coal and water supply.

This device is peculiarly adapted to hauling passenger-cars,freight-wagons, and towing canal barges. In the latter employment thedraw-bar 0 will be jointed, so as to be thrown up vertically, in orderto raise the tow-rope and allow an engine passing in an oppositedirection free passage under it.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a cab having a slot in its roof and pillow-blocks on its floor, asteam-generator journaled in said blocks, its stack extending throughthe said slot, and a sliding guard secured to the stack and covering theslot, substantially as specified.

2. A double-flanged driving-wheel for locomotive-engines, consisting ofthe flanged section h, having a hub, j, the reduced gear-wheel j,rotating on said hub, and provided with curved check-slots s, theannular flange-section h, passed on the hub outside of the gear, andbolts i, extending through the said sections and slots, substantially asspecified.

3. A locomotive-engine having its cab and tender arranged side and side,connected above and divided below, and between the engines an opening,g, leading into the coal-bunker, and provided with lateral guardsr andbridgeguard 19, adapted to protect the wheels and track from fuel thrownfrom the bunker, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two witnesses.

HENRY SAMULE PRUYN.

Witnesses:

WALTER (J. MASI, JOHN A. ELLIS.

